为挑战杯做的一个app展示模板.zip

package com.example.slf.pulse_manager.widgets; import android.content.Context; import android.content.pm.ApplicationInfo; import android.os.Build; import android.util.Log; import java.io.File; import java.io.FileOutputStream; import java.io.InputStream; import java.io.OutputStream; import java.util.zip.ZipEntry; import java.util.zip.ZipFile; public class NativeLoader { private final static int LIB_VERSION = 4; private final static String LIB_NAME = "chat." + LIB_VERSION; private final static String LIB_SO_NAME = "lib" + LIB_NAME + ".so"; private final static String LOCALE_LIB_SO_NAME = "lib" + LIB_NAME + "loc.so"; private static volatile boolean nativeLoaded = false; private static File getNativeLibraryDir(Context context) { File f = null; if (context != null) { try { f = new File((String)ApplicationInfo.class.getField("nativeLibraryDir").get(context.getApplicationInfo())); } catch (Throwable th) { th.printStackTrace(); } } if (f == null) { f = new File(context.getApplicationInfo().dataDir, "lib"); } if (f != null && f.isDirectory()) { return f; } return null; } private static boolean loadFromZip(Context context, File destDir, File destLocalFile, String folder) { try { for (File file : destDir.listFiles()) { file.delete(); } } catch (Exception e) { Log.e(Constants.TAG, e.getMessage()); } ZipFile zipFile = null; InputStream stream = null; try { zipFile = new ZipFile(context.getApplicationInfo().sourceDir); ZipEntry entry = zipFile.getEntry("lib/" + folder + "/" + LIB_SO_NAME); if (entry == null) { throw new Exception("Unable to find file in apk:" + "lib/" + folder + "/" + LIB_NAME); } stream = zipFile.getInputStream(entry); OutputStream out = new FileOutputStream(destLocalFile); byte[] buf = new byte[4096]; int len; while ((len = stream.read(buf)) > 0) { Thread.yield(); out.write(buf, 0, len); } out.close(); if (Build.VERSION.SDK_INT >= 9) { destLocalFile.setReadable(true, false); destLocalFile.setExecutable(true, false); destLocalFile.setWritable(true); } try { System.load(destLocalFile.getAbsolutePath()); nativeLoaded = true; } catch (Error e) { Log.e(Constants.TAG, e.getMessage()); } return true; } catch (Exception e) { Log.e(Constants.TAG, e.getMessage()); } finally { if (stream != null) { try { stream.close(); } catch (Exception e) { Log.e(Constants.TAG, e.getMessage()); } } if (zipFile != null) { try { zipFile.close(); } catch (Exception e) { Log.e(Constants.TAG, e.getMessage()); } } } return false; } public static synchronized void initNativeLibs(Context context) { if (nativeLoaded) { return; } try { String folder = null; try { if (Build.CPU_ABI.equalsIgnoreCase("armeabi-v7a")) { folder = "armeabi-v7a"; } else if (Build.CPU_ABI.equalsIgnoreCase("armeabi")) { folder = "armeabi"; } else if (Build.CPU_ABI.equalsIgnoreCase("x86")) { folder = "x86"; } else if (Build.CPU_ABI.equalsIgnoreCase("mips")) { folder = "mips"; } else { folder = "armeabi"; //FileLog.e("tmessages", "Unsupported arch: " + Build.CPU_ABI); } } catch (Exception e) { // FileLog.e("tmessages", e); Log.e(Constants.TAG, e.getMessage()); folder = "armeabi"; } String javaArch = System.getProperty("os.arch"); if (javaArch != null && javaArch.contains("686")) { folder = "x86"; } File destFile = getNativeLibraryDir(context); if (destFile != null) { destFile = new File(destFile, LIB_SO_NAME); if (destFile.exists()) { try { System.loadLibrary(LIB_NAME); nativeLoaded = true; return; } catch (Error e) { Log.e(Constants.TAG, e.getMessage()); } } } File destDir = new File(context.getFilesDir(), "lib"); destDir.mkdirs(); File destLocalFile = new File(destDir, LOCALE_LIB_SO_NAME); if (destLocalFile != null && destLocalFile.exists()) { try { System.load(destLocalFile.getAbsolutePath()); nativeLoaded = true; return; } catch (Error e) { Log.e(Constants.TAG, e.getMessage()); } destLocalFile.delete(); } if (loadFromZip(context, destDir, destLocalFile, folder)) { return; } /* folder = "x86"; destLocalFile = new File(context.getFilesDir().getAbsolutePath() + "/libtmessages86.so"); if (!loadFromZip(context, destLocalFile, folder)) { destLocalFile = new File(context.getFilesDir().getAbsolutePath() + "/libtmessagesarm.so"); folder = "armeabi"; loadFromZip(context, destLocalFile, folder); } */ } catch (Throwable e) { e.printStackTrace(); } try { System.loadLibrary(LIB_NAME); nativeLoaded = true; } catch (Error e) { Log.e(Constants.TAG, e.getMessage()); } } }